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雌酮(E1)在土壤中的吸附特性

岳波 靳青 黄泽春 刘敏

岳波, 靳青, 黄泽春, 刘敏. 雌酮(E1)在土壤中的吸附特性[J]. 环境科学研究, 2013, 26(2): 208-213.
引用本文: 岳波, 靳青, 黄泽春, 刘敏. 雌酮(E1)在土壤中的吸附特性[J]. 环境科学研究, 2013, 26(2): 208-213.
YUE Bo, JIN Qing, HUANG Ze-chun, LIU Min. Study on the Adsorption Characteristics of Estrone (E1) in Soil[J]. Research of Environmental Sciences, 2013, 26(2): 208-213.
Citation: YUE Bo, JIN Qing, HUANG Ze-chun, LIU Min. Study on the Adsorption Characteristics of Estrone (E1) in Soil[J]. Research of Environmental Sciences, 2013, 26(2): 208-213.

雌酮(E1)在土壤中的吸附特性

基金项目: 国家环境保护公益性行业科研专项(200909042)

Study on the Adsorption Characteristics of Estrone (E1) in Soil

  • 摘要: 研究了平衡时间、温度、pH、离子强度和土壤粒径对E1(雌酮)在土壤中吸附特性的影响. 结果表明:E1在土壤中的等温吸附平衡时间约为0.5h;在温度为10、20和30℃条件下,土壤对E1的Kf(吸附系数)分别为24.72、14.18和9.39,Kd(分配系数)分别为34.79、24.15和13.51,表明随着温度的升高,土壤对E1的吸附量显著降低;土壤对E1的吸附量在pH由3.0增至6.0时呈降低趋势,在pH>6.0~9.0时保持稳定,然后随着pH进一步升高(>9.0~11.0)而继续降低;土壤对E1的吸附量在离子强度由0.005mol/L升至0.1mol/L时显著升高,在离子强度>0.1mol/L时保持稳定;砂粒、粉粒和黏粒对E1的Kf分别为5.17、12.79和25.22,Kd分别为6.80、16.11和39.95,即随着土壤粒径的减小,对于E1的吸附作用显著增加.

     

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出版历程
  • 收稿日期:  2012-05-06
  • 修回日期:  2012-12-13
  • 刊出日期:  2013-02-25

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